Fixes #15892

2002-10-04  Rodrigo Moya <rodrigo@ximian.com>

	Fixes #15892

	* idl/evolution-calendar.idl: added notifyErrorOccurred method to
	the Listener interface, so that backends can notify clients of errors
	that can't be reported otherwise.

	* pcs/cal.[ch] (cal_notify_error): new function.

	* pcs/cal-backend-file.c (save): made to save to temporary file and
	then moved to the correct file, so that we don't lose any data if
	there's a problem while saving.
	(notify_error): new function for notifying error messages to clients.

	* cal-client/cal-listener.[ch]: added new callback function for getting
	error messages from backends.
	(impl_notifyErrorOccurred): new method implementation.
	(cal_listener_class_init): initialize new epv member.
	(cal_listener_init, cal_listener_destroy, cal_listener_construct,
	 cal_listener_new): initialize new function pointer.

	* cal-client/cal-client.[ch]: adapted to changes in CalListener class.
	(cal_client_class_init): added "backend_error" signal to CalClient class.
	(backend_error_cb): callback for "error_occurred" signal on the CalListener,
	which just emits the "backend_error" signal of CalClient.

	* gui/gnome-cal.c (gnome_calendar_construct): connect to "backend_error"
	signal on the CalClient's we create.
	(backend_error_cb): display error message on error from backend.

	* gui/e-tasks.c: likewise.

svn path=/trunk/; revision=18329

1 files changed, 30 insertions, 0 deletions

diff --git a/calendar/pcs/cal.c b/calendar/pcs/cal.c
index 60fcdc59ad..861cc47c89 100644
--- a/calendar/pcs/cal.c
+++ b/calendar/pcs/cal.c
@@ -874,6 +874,36 @@ cal_notify_remove (Cal *cal, const char *uid)
 }
 
 /**
+ * cal_notify_error
+ * @cal: A calendar client interface.
+ * @message: Error message.
+ *
+ * Notify a calendar client of an error occurred in the backend.
+ */
+void
+cal_notify_error (Cal *cal, const char *message)
+{
+	CalPrivate *priv;
+	CORBA_Environment ev;
+
+	g_return_if_fail (cal != NULL);
+	g_return_if_fail (IS_CAL (cal));
+	g_return_if_fail (message != NULL);
+
+	priv = cal->priv;
+	g_return_if_fail (priv->listener != CORBA_OBJECT_NIL);
+
+	CORBA_exception_init (&ev);
+	GNOME_Evolution_Calendar_Listener_notifyErrorOccurred (priv->listener, (char *) message, &ev);
+
+	if (BONOBO_EX (&ev))
+		g_message ("cal_notify_remove(): could not notify the listener "
+			   "about a removed object");
+
+	CORBA_exception_free (&ev);
+}
+
+/**
  * cal_notify_categories_changed:
  * @cal: A calendar client interface.
  * @categories: List of categories.